John is one of the most important progression NPCs in Grim Trials because he is the Academy mentor who formally guides Avelin through her Reaper journey and acts as a practical checkpoint between major boss victories and new Academy side content. Official developer material confirms that Avelin meets John after her first Trial Ground attempt and describes him as the mentor of Grim Reapers who guides her journey. Post-launch player routing adds another useful pattern: after major boss victories, speaking with John often points the player toward the next Academy character and helps open a new batch of side quests.
Who is John in Grim Trials?
John is a veteran Academy mentor who appears very early in Avelin's afterlife progression. An official developer log states that at the end of Avelin's first attempt at the Trial Grounds, she meets John, described as the mentor of the Grim Reapers before her and the person who will guide her through the journey ahead. The same developer material places him alongside Ivanya the Witch, Milyun the Spinner and Pytra the Blacksmith as part of the Academy cast that shapes Avelin's development.
This matters because John is not just a lore-only NPC. Grim Trials uses the Academy as a persistent hub where mentors train and arm Reapers, quests build relationships, and character interactions unlock advice, knowledge and support. John's position as Avelin's guide therefore sits at the center of the game's story progression and its practical between-run routine.
John's role as Avelin's mentor
The official developer description is the strongest evidence for John's role: he is the mentor who guides Avelin after her first Trial Ground attempt. That makes him different from characters whose main gameplay identity is tied to one workshop. Pytra is strongly associated with weapons, Milyun with gear, and Ivanya with potion-focused crafting. John is broader. His value comes from helping structure Avelin's progression through the Academy and the larger Purification journey.
The developer log also gives some character-design context. John was originally conceived as intentionally plain and tired from a long period of Reaper responsibility, but the team later reworked him because they wanted the first Academy denizen to leave a stronger impression. That detail is useful because it explains why John appears so early and why his presence is framed as more than incidental dialogue.
Should you talk to John after every major boss?
Yes, that is the safest current player-tested routine. A post-launch trophy guide reports that most Academy side quests follow a repeated pattern: defeat a main boss, return to the Academy, speak with John, then talk to the person he directs you toward. That interaction can open a new wave of side quests, although some quests still require earlier character chains to be completed first.
This route is third-party documentation rather than an official developer checklist, so it should not be treated as a hard-coded universal trigger for every quest. It is still extremely useful in practice because it gives players a simple habit that prevents side content from being overlooked. If you have just defeated Acedia, Avaritia, Gula, Ira, Luxuria, Invidia or another major progression boss, return to the Academy and check John before starting another long run.
Use John as an Academy quest checkpoint
For completion-focused play, John works best as a progression checkpoint rather than as a character whose dialogue you visit only when the main story forces you to. The most efficient routine is to check him whenever one of three things happens: you defeat a major boss, you finish a substantial Academy character chain, or you return after unlocking a new crafting or relationship milestone.
Why does this matter? Grim Trials has multiple side-content systems that overlap. Affinity achievements require maximum relationship progress with Pytra, Milyun, Ivanya, Iskra, Kai and Breone & Nameles. Secret content depends on character quest chains. Crafting completion depends on recipes and workshop progression. The strongest current player-tested True Ending route also recommends clearing Academy side content before Superbia. A missed quest batch can therefore delay several objectives at once.
John and Mentor Makeover
John is also tied directly to a released achievement: Mentor Makeover. The achievement requirement is to craft a set of new gear for John with Milyun. This is important because it gives John a confirmed connection to the crafting side of the Academy, not just the story.
The achievement wording should be read carefully. It confirms three things: John receives the gear, Milyun is the crafting partner, and completing that specific gear objective unlocks Mentor Makeover. It does not by itself prove that John has his own equipment system, selectable stats, permanent loadout, or independent gear-upgrade interface. Those extra mechanics should not be invented from the achievement title.
If Mentor Makeover is your goal, progress Milyun's side content, keep her Affinity and gear-related quests moving, and check the Milyun guide plus the Quests Guide for the current route context.
Does John have a maximum-Affinity achievement?
No released platform achievement specifically asks for maximum Affinity with John. The six confirmed maximum-Affinity targets are Pytra, Milyun, Ivanya, Iskra, Kai and Breone & Nameles. That does not mean John is unimportant to character progression. It simply means his public completion role is different: he is a story and Academy progression guide rather than one of the six named maximum-Affinity achievement targets.
This distinction is useful for SEO and for players. Searches for "John affinity" can easily lead to pages that assume every major Academy character has the same relationship structure. The released achievement set does not support that assumption. Use John primarily as a progression guide and quest checkpoint unless the game itself shows additional relationship tracking in your current save.
John and the True Ending route
Official achievement data confirms that Grim Trials has both a normal ending and a True Ending, but it does not publish an exact John-specific requirement for End of All Cycle. Current post-launch completion routing recommends clearing Academy character side missions before fighting Superbia if you want the safest documented True Ending path.
John matters here because the same player-tested route uses him after major bosses to surface new Academy content. In other words, John is not proven to be a hidden True Ending trigger; he is useful because checking him helps you avoid leaving side quests unopened before the final boss. That is the correct level of certainty based on current public evidence.
Best practical John routine
- After each major boss, return to the Academy and speak with John. This is the strongest current player-tested method for catching newly available side content.
- Follow up with the character John points you toward. New quest waves often branch into the Academy cast rather than remaining with John.
- Clear obvious side quests before pushing several bosses ahead. Some later quests depend on earlier character chains.
- Do not ignore Milyun. Mentor Makeover directly requires crafting John's new gear with her.
- Before Superbia, sweep the Academy again. This supports the safest current player-tested True Ending route and reduces cleanup afterward.
YouTube guide status
No current-version YouTube video found during this verification pass was focused enough on John's Academy quest refresh pattern and Mentor Makeover to justify embedding it as a dedicated guide. A generic trailer would add little to this page, so this article intentionally omits a video until a genuinely useful John-focused walkthrough is available.
John FAQ
Is John a mentor in Grim Trials?
Yes. Official developer material explicitly describes John as the mentor of Grim Reapers before Avelin and the person who guides her journey after her first Trial Ground attempt.
When should I talk to John?
The safest post-launch player-tested routine is to talk to John after defeating each major boss, then follow the Academy character direction he gives you. Some side quests still require earlier chains first.
What achievement is tied to John?
Mentor Makeover requires crafting a set of new gear for John with Milyun.
Does John have a max-Affinity achievement?
No John-specific maximum-Affinity achievement appears in the released platform achievement set. The six confirmed targets are Pytra, Milyun, Ivanya, Iskra, Kai and Breone & Nameles.
Is John required for the True Ending?
There is no official public checklist naming John as a hidden True Ending requirement. However, using him as a quest checkpoint helps expose Academy side content that the strongest current player-tested True Ending route recommends completing before Superbia.
Related guides
Sources & verification
- Grim Trials on Steam — Academy, mentors, quests, relationships and persistent progression framework.
- Official Grim Trials developer log — John as the mentor who guides Avelin after her first Trial Ground attempt and early Academy cast context.
- Steam achievements — Mentor Makeover requirement and released character-completion goals.
- XboxAchievements — cross-platform confirmation of Mentor Makeover.
- Gamerbase post-launch trophy guide — player-tested boss-to-John-to-side-quest progression pattern.
