Ah, My Darling is a Ne'er-do-well Episode 9

Finding Kyoko's information useless, Ayumu is told by Dai-sensei to seek out the strongest underworld warrior, Naegleria Nebiros, who is an old friend of Eucliwood's. After agreeing to attend one of Saras' concerts, Ayumu meets up with Naegleria and ends up having to help her draw her doujinshi, with the others later joining him. As they learn the story is about Eucliwood and how things might've been for her, the gang become determined to complete it but get set back thanks to Sera's cooking. After completing a fair amount of work, Ayumu manages to make it to Saras' concert before it ends. After the concert, Saras takes Ayumu out to the roof and gives him a carton of coffee milk. When Ayumu is distracted while talking to Saras, Saras sucks on Ayumu's straw, thus marries Ayumu. The end of the episode shows Naegleria and Chris hanging out together, proving that they have a friendlike relationship.