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 Creator
Original Character Design
Color Design
Sound Director
Music
Animation Director (ep 3)
Producer
Producer
Theme Song Arrangement (OP), Theme Song Composition (OP)
Theme Song Composition (OP), Theme Song Lyrics (OP)
Animation Director (eps 3, 7)
Character Design, Chief Animation Director
Producer
Animation Director (eps 1, 3, 12)
2nd Key Animation (ep 1)
Animation Director (ep 12)
Producer
Animation Director (ep 2)
Producer
Producer
Animation Director (ep 2)
Producer
Director of Photography, Editing
Theme Song Performance (ED)
Script, Series Composition
Producer
Animation Director (ep 12)
Animation Director (ep 7), Key Animation (ep 1)
Episode Director (eps 6, 10), Animation Director (eps 6, 10)
Key Animation (ep 1)
Animation Director (ep 1)
Producer
Script (eps 3, 6, 10)
Theme Song Lyrics (ED)
Animation Director (ep 12)
Episode Director (eps 3, 7)
2nd Key Animation (ep 7, 12)
Key Animation (ep 3)
Script (eps 4, 7, 9)
Director, Storyboard (ep 8), Episode Director (ep 8), Key Animation (ep 8)
Theme Song Performance (ED2)
ADR Director
Key Animation (ep 1)
Theme Song Performance (OP)
2019年 季度排名 #1
2019年 動畫總排名 #31
