Kotarou Enomoto (榎本 虎太朗 Enomoto Kotarō) is a major character in the first year students' arc within the series, and the younger brother of Natsuki Enomoto. He serves as the third angle in the love triangle between himself, Hina Setoguchi, and Koyuki Ayase.
|Hair color||Dark Brown|
|Eye color||Dark Brown|
|Birthday||November 29th (Sagittarius)|
|Relationship(s)||Natsuki Enomoto (older sister)|
|Occupation||High School Student|
|Song||Kinyoubi no Ohayou|
|Novel||Kokuhaku Yokou Renshuu (novel)|
|Anime||Zutto Mae Kara Suki Deshita. -Kokuhaku Jikkou Iinkai-|
- Kotaro is an average height young man with brown eyes and brown hair. His haircut is short and kept close to his face, prominently showing his forehead. In his second year of high school, he gets a little taller, his hair is noticeably longer, and gives him longer bangs but still shows off his forehead.
- Both in middle school and high school, Kotaro keeps his uniform top open. He wears a school-issued white shirt with an orange undershirt underneath, which can only be seen from the top.
Childhood friend he's been in love with for years. He's always found himself taking care of her or trying to make her happy, which becomes his mission statement later on in life.
Upperclassman. Kotaro is jealous of him because Hina likes the latter boy, but doesn't directly come after him.
He does get to question him for making Hina cry after she was rejected, but Koyuki only advises Kotaro to look after his own love and go after Hina before he regrets it.
In Kore Seishun Understand, he and Koyuki do some gardening together, showing that they're not on bad terms with each other.
Classmate and friend since middle school. Kotarou helped her deal with her bullying by cleaning off her written-on desk, and the two have been friends ever since. Arisa likes to tease him about his crush on Hina and tries to push the two together.
Friend since at least middle school. Likes to tease Kotarou about Hina, and Kotarou often has to keep the boy in line.
Friend since at least middle school. Yamamoto talks to Kotarou about his various problems and reassures him or gives him advice when needed.
Older sister. They bicker and fight often, but still like to support each other.
Neighbor and childhood friend.