Here is the full list of all 9 Please Teach Me Onedari Shogi achievements.
Completed the initial outfit gallery of a cosplayer.
Got Compatibility to level 2.
Got Compatibility to level 3.
Listened to request and helped out.
Listened to plead and didn't help out.
Finished a match.
Lost a match.
Won matches against all cosplayers.
Compatibility level raised to the max.