http://desertrain.sakura.ne.jp/kouryaku/2013/overdrive_bokuten/index.html
Yuri
Save 1
Do not return the shard
Don't return it
Give up
Do not return the shard
Do not return the shard
Save 2
Return the shard (end 1)
Load from save 2
Respect Yuri's wishes (end 2)
Minamo
Load from save 1
Return the shard
Return the shard
Return the shard
Save 3
Don't return the shard
Don't return the shard
Save 4
Encourage Minamo
Load from Save 4
Stop Minamo
Naruko
Load from save 3
Return the shard
Save 5
Return the shard
It was my imagination (choice only occurs when Aine route is unlocked)
Save 6
Don't return her feelings
Load from Save 6
Return her feelings
Aine
Load from Save 5
Return the shard
This might be too much for us