You were staying in the same house as Sanzu, Ran and Rindou. As usual, Sanzu and Rindou got angry, Sanzu hits Rindou hard and backs down but he is still calm and doesn't care about Rindou. Ran was trying to hold Rindou back while Rindou was screaming angrily, and Sanzu was just watching as Rindou tried to get rid of Ran.

Rindou: “I swear I'll come in there and break your leg, damn it!”

Sanzu grabs a nearby chair and throws it at Rindou, causing him to back away slightly so Rindou turns angry at Sanzu.