Ritsuko Sakakibara

Ritsuko Sakakibara is the older sister of Reiko Mikami, the deceased wife of Yōsuke Sakakibara, and the mother of Kōichi Sakakibara, who only appears in the school graduation album and the old Sakakibara family pictures. She went to Yomiyama North Middle School in 1972 and was in the same class as the dead Misaki Yomiyama, 9th Grade Class 3-3. Ritsuko has long brown hair and brown eyes (black eyes in the manga). In her middle school days, she wears a ponytail in the anime, whereas in the manga, her hair is shoulder-length and worn down. Also, she is seen after Kōichi Sakakibara's birth in the...

Yōsuke Sakakibara mentions that Ritsuko is a very special lady who has a great taste in men and is also a supportive sister. Reiko Mikami mentions that when Ryōhei Mikami (Reiko's father) went against Reiko's decision to attend art university, Ritsuko was the only one who stood up for her and suppor...