桐生慧輝希望交到女朋友。某天他收到了一封夾著內褲的情書，而根據慧輝的推測，有四位女孩是最有可能寄這封情書的對象，當慧輝不斷地去追尋真相時，卻發現他身邊的女孩子有著不為人知的秘密。
桐生慧輝希望交到女朋友。某天他收到了一封夾著內褲的情書，而根據慧輝的推測，有四位女孩是最有可能寄這封情書的對象，當慧輝不斷地去追尋真相時，卻發現他身邊的女孩子有著不為人知的秘密。
Original Character Design
2nd Key Animation (ep 7, 12)
Theme Song Performance (ED)
Character Design, Chief Animation Director
Animation Director (eps 1, 3, 12)
Script (eps 4, 7, 9)
Theme Song Performance (ED2)
Theme Song Performance (OP)
Key Animation (ep 1)
Animation Director (ep 7), Key Animation (ep 1)
Animation Director (ep 12)
Animation Director (ep 12)
Producer
Producer
Animation Director (ep 2)
2nd Key Animation (ep 1)
Script, Series Composition
Original Creator
Director, Storyboard (ep 8), Episode Director (ep 8), Key Animation (ep 8)
Sound Director
Episode Director (eps 6, 10), Animation Director (eps 6, 10)
Animation Director (ep 2)
Script (eps 3, 6, 10)
Producer
Producer
Theme Song Lyrics (ED)
Producer
Theme Song Arrangement (OP), Theme Song Composition (OP)
Theme Song Composition (OP), Theme Song Lyrics (OP)
Music
Director of Photography, Editing
Color Design
Episode Director (eps 3, 7)
Key Animation (ep 3)
ADR Director
Key Animation (ep 1)
Animation Director (ep 1)
Producer
Animation Director (ep 3)
Producer
Producer
Producer
Animation Director (ep 12)
Animation Director (eps 3, 7)
Amamiya is kawaii!
完結散花～～好看！