GinHiji. During Kanketsu-hen. After Gintoki's disappearance. Hijikata has a dream about a White Sakura.
Post animated video. Lewis' mansion disappears. Arthur and Vivi fully remember the events at the night at the mansion. Mystery the Dog, responsible for initially making Arthur and Vivi forget, faces the consequences. Meanwhile, the disappearance of the mansion leads to the escape of dark forces. One of then includes the reason why this all happened. Green is not a creative colour.
GinHiji. Post Kanketsu-hen. Gintoki is the only one who knows of the events passed during Kanketsu-hen. It's Hijikata's day off, and Gintoki wants to style his lover's hair.