Spades Soldier/Carroll in Wonderland

Spades Soldier (スペードアーミー Supēdo āmī) is a minor character in Carroll in Wonderland.

Day 1
Spades Soldier is in the right waiting room in the late afternoon (16:00-19:59) and moves to the Entrance for the night (22:00 to 6:59 of Day 2).

Day 2
Spades Soldier is in the Communal Bath from 7:00 to 8:59, and moves to the left waiting room from 9:00 to 18:00.

Day 3
Spades Soldier is in the Entrance during the morning (7:00-11:59). From 16:00 to 17:59 she is in the right waiting room talking to Hearts Soldier. She is in the Communal Bath from 12:00 to 13:59 and after 18:00 (in the latter case, she's with the other card soldiers).

Sidequest
Spades Soldier has a sidequest where she asks you for help with her DIY hobby, though the condition for this sidequest is unknown. Accepting this brings you to an area of Stray Coast (one of only two ways to leave the castle in this game). Examine a palm tree here and Spades Soldier will gain inspiration from it, finishing the sidequest and sending you back to the castle. Both going to Stray Coast and back take half an hour.

Completing this sidequest gives the achievement "DIY Master".

H-scenes
Spades Soldier has two H-scenes, both reusing artwork from Succubus in Wonderland:

The first is a breastfeeding handjob, which can be obtained by going into the Communal Bath when she's there on Day 2 and talking to her. This gives the achievement "Merciless Succubus Breastfeeding".

The second is a group scene with the other card soldiers, which can be obtained by going into the Communal Bath after 18:00 on Day 3. This gives the achievement "BADEND3: Hero Soaked in Milk".