Eichi Tenshouin/Relationships

Hajime Shino

 * Member of the Tea Club. Hajime respects Eichi greatly and has also come to call him "onii-chan", similarly to Tsukasa.

Tori Himemiya

 * Member of his unit, fine.

Shinobu Sengoku

 * Grouped in the same temporary unit, during Starry Night Festival, along with Nazuna.

Tsukasa Suou

 * Tsukasa highly respects Eichi to the point where he would call him "Tenshouin Onii-sama." As such, Tsukasa often scolds those who do not treat him highly and respectfully, though Eichi somewhat dislikes his noisy attitude.

Souma Kanzaki

 * Though Souma acted respectfully towards Eichi before, his decision to "disband" AKATSUKI" caused Souma to develop a hatred towards him during Quarrel Festival.

Anzu

 * Anzu acts nervous and somewhat cautious around Eichi, and this doesn't seem to change much throughout the year. They have tea together in A Soul in a Single Stroke however, and Anzu listens to his request in Agents, so they might get along, in spite of some awkwardness.

Eichi initially overlooks Anzu, which leads to his failing in DDD. He learns from there that she's worthy of being his playmate. In Tanabata Festival, Eichi admits his leaving the planning of S1 to Anzu is because he wants to see her struggle. He has yet to see her as his enemy, but wishes she would fill that role someday. Eichi seems to start appreciating Anzu more as a person and less as just a toy as time goes on. In Quarrel Festival, he talked to her a lot about his past, the bad things he's done and his relationship with Keito. He is comfortable with her and went as far as telling her he would feel better if she gave him oxygen via mouth-to-mouth. Anzu is getting less and less tense around Eichi as well. She went as far as falling asleep on his lap in Continuation of the Dream.

Ritsu Sakuma

 * Member of the Tea Club. The two tend to bicker over meaningless things, but are otherwise on good terms.

Yuzuru Fushimi

 * Member of his unit, fine.

Keito Hasumi

 * The Student Council Vice President and childhood friend of Eichi. As their families shared a good relationship, the two were able to spend time with each other as children.  As of now, Keito is extremely strict with Eichi due to his health conditions, and often scolds him for doing too much work.

Wataru Hibiki

 * Member of his unit, fine.