Mae chwaer hŷn Yusuf yn priodi. Mae o’n edrych ymlaen at y bwyd bendigedig, at gael hwyl gyda’i gefndryd a’i gyfnitherod, ac at yr holl anrhegion ... Ond dydy o DDIM yn barod i gamu i sodlau’i chwaer a throi’n gyfrifol. Dim ond un dewis sydd ganddo: achosi helbul a difetha’r briodas.

Yusuf's elder sister is getting married. He's looking forward to the delicious food, and to having fun with his cousins, to seeing all the gifts ... But he is NOT ready to step into his sister's shoes and become responsible. He only has one choice: to create havoc and spoil the wedding. Part of the Rhyngom Scheme.