Ep. 13: Osomatsu discovers Choromatsu engaged in a deeply private and embarrassing activity

13

Osomatsu unexpectedly stumbles upon Choromatsu while the latter is engaged in an activity that he strictly intended to keep hidden from everyone else. The situation arises from Osomatsu catching Choromatsu in the act of doing something he never ever wanted anyone to see, creating an awkward and compromising scenario for the younger brother.