Start with the character tied to your question
Haruhi, Kaito, Hashimoto Genzo and Hoshino Yui have dedicated guides. Baketsu links to the community-documented Ghost in the Frame route, not an empty profile or an officially verified complete trigger script.
Protect invitation branches with separate saves
Keep a named save before an invitation and preserve it while testing each character branch. This is conservative save protection, not proof that every invitation is mutually exclusive. Community reports disagree about Haruhi and Baketsu sharing a branch; the Ghost guide explains that conflict. Record your build and outcome rather than assuming a mixed branch always requires rollback.
Orders begin at the counter. Read the request, then check the To-Do list before deciding that progress is blocked.
What this directory confirms
The links summarize documented tasks, choices and achievement routes. They do not invent visit counts, hidden stages or a fixed total number of characters. Build-sensitive details remain marked on each guide so the live game can override an older report. The official September 18 notice says the update planned for September 21 is delayed and gives no new date.
Upcoming Story: Kaito and Haruhi Return
The announced free update is future content, not a replacement for the Kaito and Haruhi routes already in the game. The September 14 announcement named an adult Kaito and Haruhi story plus a new character and device, but the official September 18 notice delayed the planned September 21 launch and did not provide a new date. Until a release announcement appears, use the current Kaito and Haruhi guides only for the shipped story and achievements. Do not treat preview roles, trailer scenes or the delayed date as playable quest steps.
Pick a route guide, character guide or achievement guide
Open a character guide when you need to identify a customer, follow their visible tasks or understand a choice with light context. Open an achievement route when the result itself is the goal: Melancholy belongs to Haruhi, Ronin belongs to Kaito, and Ghost in the Frame belongs to Baketsu. Use the story troubleshooting hub when no customers arrive or the To-Do list stops moving; a stalled save is not automatically proof that a character choice failed. Device repair instructions stay on the device pages so story decisions are not mixed with screw order or parts placement. In short: character pages cover tasks and choices, achievement pages cover exact unlock routes, story troubleshooting covers stalled progression, and device pages cover teardown, repair and parts.
Protect your save before a character branch
Make a manual save before the invitation or other irreversible choice, then give the slot a character name. After the scene, verify the To-Do list and achievement result before continuing many in-game days. If the expected result does not appear, keep the pre-choice save and record the game build, day, completed tasks and exact dialogue choice. Test one change at a time. This makes it possible to distinguish a missed prerequisite from a progression problem without overwriting the only useful checkpoint. The linked guides mark community-reported or build-sensitive steps instead of presenting them as universal facts.
Common mistakes when following a character route
Do not treat a repair failure as proof that the story choice is wrong: first finish the current Notebook objective and confirm that every part is placed. Avoid advancing many days while waiting for an event unless the linked guide documents that wait; protect the earlier save instead. A trailer, preview paragraph or community theory is not a current quest requirement. Finally, do not copy a route from a different build without checking the version note. If a guide and the live To-Do list disagree, follow the live objective, capture the mismatch and keep the unmodified save for a clean retry or support report.
