Ep. 4: Isu persahabatan antara Kaori dan Shogo membuat Yuki marah kepada Kaori, yang berujung pada pertengkaran.

A rumor begins spreading around the class that Kaori and Shogo are friends. Finding himself a bit envious, Yuki upsets Kaori by asking her to tone down on inquiries about Shogo. However his words hit Kaori harder than expected, resulting in their first fight to which she leaves school early that Friday. Kaori eventually finds herself at the river where she accidentally loses her diary, while at the same time Yuki goes to Kiryu for solace. Kaori then collapses from a cold when she returns home, coincidentally knocking the reminder about her diary off her door. The following Tuesday, Kaori finally shows up for school and Yuki immediately attempts to apologize for their fight. However much to his shock, she fails to remember him or her diary. Feeling depressed, Yuki asks for Shogo's advice and his words encourage Yuki to begin searching for Kaori's lost diary. Afterwards Shogo speaks with Kaori and helps her realize that her memories are missing. The next day, Kaori visits the river on a whim and finds Yuki desperately searching for the thing she forgot. When Yuki eventually finds the diary, Kaori accepts that it was the important thing she had lost. Finally, the pair make up and restart their cycle all over again. (Source: Wikipedia)
Episode
- Ep. 1 · Yuki mengejar Kaori meskipun ia mengklaim kehilangan ingatan tentang teman setiap hari Senin.
- Ep. 2 · Yuki dan Kaori menavigasi siklus kehilangan memori mereka melalui pengalaman bersama dan entri buku harian.
- Ep. 3 · Kaori berbagi rahasia makan siang dengan Shogo, yang membantunya mengambil kembali buku harian yang terlupakan dan membantu pemulihan ingatannya.
- Ep. 4 · Isu persahabatan antara Kaori dan Shogo membuat Yuki marah kepada Kaori, yang berujung pada pertengkaran.
- Ep. 5 · Saki Yamagishi dan Kaori membangun persahabatan meskipun Kaori mengalami kehilangan memori dan terikat aturan untuk tidak berbicara.
- Ep. 6 · Yuki belajar bersama Kaori dan mengetahui tentang kecelakaan masa lalunya dari ibunya.
- Ep. 7 · Kaori dan Yuki berjuang dengan komunikasi selama persiapan liburan musim panas.
- Ep. 8 · Teman-teman mengunjungi pantai, namun cuaca buruk memaksa mereka berlindung di arcade dan memicu ketegangan romantis.