Yuika is a big-breasted sister who is worried that she and her boyfriend Hayato have been having a hard time lately. She wonders if he might be bored with her...? Hayato comes down with a cold! Yuika takes advantage of the fact that Hayato is laid up with a cold and makes a fierce attack on him. Yuika changes into a maid's uniform Hayato bought on the spur of the moment a while ago, and serves his hot cock..! (Source: Fanza, translated) Note: Published in Comic ExE 33