This is actually a collection of some old side stories of Yuu Watase.

Volume 1:

Story 1 - "Sunde ni Tiara" in "Imadoki" Vol. 5

Story 2 - "Couple" in "Shishunki Miman Okotowari Kanketsu Hen"

Story 3 - "Hatsuki Triangle" in "Suna no Tiara"

Story 4 - "Houkago Gensou" in "Appare Jipangu" Vol. 1

Story 5 - "700 Nichi no Blue" in "Suna no Tiara"

Volume 2:

Story 1 - "Perfect Lovers" in "Musubiya Nanako"

Story 2 - "Otomoe no jijou" in "Shishuki Miman Okotowari" Vol. 3

Story 3 - "Genseika" in "Mint de Kiss me"

Story 4 - "Mint de Kiss Me" in "Mint de Kiss Me"

Story 5 - "Pajama de Ojama" in "Gomen Asobase!"

Story 6 - "Pajama de Meiro" in "Gomen Asobase!"