In a drama C.D it was mentioned that his family for his birthday, would prepare a cake and there’d be a present under his pillow the next morning. and nothing more was mentioned about them.

Soubu High SchoolEdit

Saika is popular among his peers. He also has his own girl fans who address him as prince for his feminine personality. He is placed in top heirachy of the class and quite popular in school of both genders.

Tennis clubEdit

Saika seems to have a good relationship with his clubmates for being able to command them as shown in episode 12 of season 2. Saika also tried his hand in improving the strength of his clubmates.

Hachiman Hikigaya Edit

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He was in the same class as Hachiman for two years and they attend the same gym session at their school. Saika seems to have a very kind and loving personality towards Hachiman, and even goes as far as to hug him when their team wins the athletic tournament, making Hachiman blush madly. Saika is the second person in the series to call Hachiman by his first name. Hachiman even teamed up as Saika's tennis partner once, when Saika's usual partner was absent. Both Hachiman and Saika usually call each other by their first name.

Every time Hachiman talks to Saika, Hachiman is often blushing, despite Saika being a male. when being approached by Saika in class, Hachiman blushed, then mumbled, "Please cook for me every morning for the rest of my life," causing Saika to be utterly confused, in which Hachiman quickly responds, "I'm not fully awake yet."
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Hachiman often has 'thoughts' about Saika, and quickly stops himself from 'falling for the Totsuka route' after quickly remembering that Saika is a male. Saika is one of the few people who truly wants to be closer than friends with Hachiman, despite Hachiman wanting to stay a loner because of Hachiman's tsundere-like attitude. Furthermore, at the summer camp, Saika mumbled Hachiman's name in his sleep, causing Hachiman to be sleepless out of embarassment. This mannerism of Saika's to pronounce Hachiman can be seen during field trip in train and in hotel.

He was the one of the few to know the real reason of the roof incident during the Cultural Festival, but shows concern for Hachiman, to which Hachiman waves not to worry. After the athletic festival, even when their entire class shown their dislike towards Hachiman, he still socialize with Hachiman. He is also one of the few people who admire Hachiman for his true, kind personality.

In  Episode 7 of season 2, Saika says that he thinks Hachiman to be as a cool person, indicating that Saika thinks highly of Hachiman.Saika also participated in a meeting to contributing in helping Hachiman to stop Yui & Yukino from participation as a candidate for student council president.Saika also showed interest and willingly teamed up with Hachiman a few times. In the light novel, it is also shown that he is able to tell when Hachiman is depressed or restless in many cases .They often seem to hang out together in places like the arcade and even to the movies during summer vacation (mentioned in volume 5)

Hayato HayamaEdit


Hayato and Saika participating in Hina's play.

Hayato and Saika seem to be on friendly terms. Saika and Hayato even participated in the main roles of Hina's play, an adaptation of the story "The Little Prince", though Hachiman was originally supposed to be in Saika's place.

Once Hayato tried to assist the service club in Saki case but ended badly to which Hayama refers to have been rejected. Hachiman along with Yoshiteru burst out laughing, Saika tried to stop them from laughing at Hayato but contagiously got him, who was struggling to hold his own laughter. Hayato states it as alright to Saika


Hayato and Saika in Hachiman's perspective

It is shown that Hayato was initially reluctant to take the part, though he eventually obliges due to his courteous manner. Saika was shown to not argue or complain about participating, though instead was wondering rather cutely to Hachiman if he was "right for the part." Hayato, Hachiman and Saika attended the workplace visit as a group. They seems to get along without any hardship.

Yoshiteru ZaimokuzaEdit

Saika freely hangs out with Zaimokusa as well, In the light novels, Zaimokuza accompanied Hachiman and Saika to the arcade and to the theater. Saika gave Zaimokusa a picture of the three. Saika also extended his hands in friendship stating that "a friend of Hachiman is his friend as well".

Service Club Edit


Totsuka in the Service Club meeting for the Saki case

Saika seems to hang out comfortably with the service club during any activities. He also lended a helping hand to Saki Kawasaki, and assisted Hachiman as a request from Yumiko.

Yukino Yukinoshita Edit

They have mutual respects towards one another. Yukino was impressed by Saika's determination, during his training.

Yui YuigahamaEdit


Saika and Yui training

Saika and Yui are classmates, and are on quite good terms with one another. Yui thinks of cross-dressing Saika and taking pictures of him. They seem to have free conversations, as Yui suggested Saika to join the service club to help him improve his strength in tennis, also helping him in training. Yui also invited Saika for a study group with Yukino, while Yui completely ignored Hachiman, until Hachiman himself found it. In the drama CD, Saika gave Yui a hair clip for her birthday. Yui also affectionately calls him Sai-chan.


Komachi HikigayaEdit

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Saika and Komachi in Chiba village

They seems to be on good terms. Just like her brother, Komachi, she too mistakes Saika to be a girl at first. They were also playing together in the river along with others at the Chiba Village Summer Camp. Komachi sometimes worries about her brother paying lots of attention and interest to Saika in a romantic way. They call each other by their first names.

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