Hatenaki yokubô: Kankin share house (2015)

Sana, a temporary worker, is thinking of moving because her apartment needs to be renovated and her temporary contract is about to expire. Her boyfriend Shuuki, a game maker, has also decided to study abroad for the future. Thanks to their marital relationship, they have been able to rely on each other despite being separated. Sana is interested in a newly fashionable shared house and goes to view a property. The owner, Tani, picks her up at the nearest station and takes her deep into the mountains. When they arrive, they find a house spread out before them. It was an environment beyond Sana's imagination. The entrance was decorated with specimens of butterflies. As Tani showed her the rooms, she told her that the house belonged to her deceased parents and that she did not work for a company as a commercial agent. He was told that there were several other people living with him, but they were away on business or traveling. After dinner and a bath, Sana decided to have a toast in the garden with Tani. After a while, she begins to doze off and falls into a deep sleep. Tani takes Sana to her room after putting her to sleep with sleeping pills, and her face is full of frantic joy, unlike before.