2. Evidence System

In this game, you collect evidence items ('evidence') which reflect physical evidence, statements, or other observations that will help you make a justified accusation against the killer. However, most evidence items in their base form are just facts, and don't mean much by themselves. To form a stronger case, you must make deductions about two pieces of evidence.

Most base pieces of evidence are not that useful. They will provide minimal/no points when used in the final accusation. Therefore, you are strongly encouraged to use your intuition to make deductions - the game's best ending is only possible when you make the most of this system.

Deductions

A deduction is the action you take to combine two pieces of evidence to create a new piece of evidence. You might notice that much of the evidence you find from talking to NPCs, find on the ground etc. is more of a statement - it's factual, but doesn't say much on its own. A deduction is the game's way of allowing you to (literally) putting two and two together.

Every deduction is made in the Logic menu (Start > Logic). Combining two items does not consume them so there is never a reason to hold back. Work down this list before you begin the final accusation scene and make every deduction you can.

Deduction recipes

Ichiro (the real killer):

Combine	Result	Where the premises come from
Sketchbook + Refused Suitor	Unrequited Love	Ichiro's room (step 20.ii) + Suzuki (step 20.xi)
Tuition Funds + Sponsorship	Withdrawn Funds	Automatic (departure) + Suzuki's question (step 6)
Unrequited Love + Withdrawn Funds	Twin Refusal ★	The two deductions above
Breadcrumbs + Bread Eraser	Artist at the Door	Gozo's cabin (step 9.iii) + Ichiro's room (step 20.ii)
Breadcrumbs + Dark Residue	Artist at the Door	Alternative recipe; Dark Residue is Stoutland-only
Two Sounds + Hidden Pipe	Silenced Witness	Automatic (step 14) + beating Tatsuo (step 5)
Two Sounds + Bloody Cloth	Silenced Witness	Alternative recipe; Bloody Cloth is Cramorant-only (step 14.i)
Smeargle's Moves + Odd Battle	Copied Discharge	Beating Ichiro (step 5) + beating Kitaro at night
Scorched Panel + Broken Latch	Panel Struck	Electrical room (steps 19.i and 19.ii)
Copied Discharge + Panel Struck	Sketched Discharge ★	The two deductions above
Total Darkness + Injured Leg	Impossible Aim	Talking to Ichiro in the bathroom (step 18.i)
Bathroom Knife + Missing Knives	Left Behind	Bathroom (step 18.ii) + Joji's room (step 20.vii)
Impossible Aim + Left Behind	Self-Inflicted ★	The two deductions above

★ = these evidence items must be submitted for their respective questions in order to receive the Best ending

Takeshi (the wrong suspect)

Combine	Result	Where the premises come from
Dropped Flower + Requested Meeting	Final Meeting	Gozo's cabin (step 9.ii) + automatic (departure)
Takeshi's History + Family Picture	Takeshi's Revenge	Hold quiz, "Zaiki" (step 11.i) + Takeshi's room (step 20.iii)
An Accomplice + Unlocked Cell	Accomplice Theory	Natsue (step 16.ii) + Akie/Tatsuo's cabinet (step 20.iv)
Adjoining Hold + Open Storage Door	Nearest Hand	Steps 19.iii and 19.iv