|Animal in Name||Crane (鶴)|
|Height||169 cm (5'6½")|
|Weight||55 kg (121 lbs)|
|Hair Color||Dark brown|
|Eye Color||Dark brown|
Monika Tsurutani (鶴谷 モニカ, Tsurutani Monika) is Suzume Yosano's friend and classmate. She is also friends with Yuyuka Nekota and Nana Kameyoshi, the latter of whom she seems to spend a lot of time with. Later, she begins to date Manabu Inukai after he confesses to her during the school's cultural festival.
Tsurutani is tall and has frizzy, curly dark brown hair as well as dark brown eyes. In day.58, she is referred to being a Japanese with mixed blood, explaining her appearance. Tsurutani and Inukai further elaborates on this, explaining how she is a quarter Spanish.
- She likes eating nibbles in general.
- She enjoys doing ballet and gymnastics.
- She is worried about her breasts growing bigger.
- She is part of a side story based around herself and Inukai.
- Despite having blue-colored eyes on the cover of volume 2, she is shown to have dark brown eyes in multiple other released artworks. This is similar to the case of Kameyoshi, who was shown to have pink eyes on the cover of volume 2.
- The animal in Tsurutani's name, crane (鶴), is the "tsuru" in "Tsurutani."
Yasuo Minamoto - Tanaka - Yada - Ririko Nekota - Yuyuka's father - Yuyuka's mother
Suzume's father - Daishi Mamura - Mamura's mother - Sa-chan - Samejima - Odawara