It's Sunday in early June, and Tamaki is in bed with a cold. Shiina and Ayame come to visit and agree to stay with her while Granny goes out to buy cold medicine.

Before class one day, Kayo sees Tamaki in the hallway and asks for her help with some song lyrics. Tamaki gets the idea that Kayo is in the throes of a passionate, mushy love, and they end up alone in the DTM lab...

As Tamaki walks along the riverbank at dusk, she is confronted by a young girl. The girl claims to have visited the club room during what was a most hectic time, and Tamaki barely remembers her. Saying she is a member of the Illustration Club, she challenges Tamaki to a duel between artists.

Shiina is going through her daily routine of buying a drink from the vending machine en route to school, and saying hello to the stray cat, when suddenly, Tamaki appears and clings to her. Tearfully, Tamaki explains to Shiina that the shock of learning how talented Minaha is at drawing has caused her to have a terrible dream.

It's July and the students are wearing their summer uniforms. As she happily heads toward school, Tamaki encounters Teru, and learns that she is the one and only "Teru Senpai" who founded the SNS Club. Declaring that she is going to sneak into school, Teru slips off Tamaki's hair ribbon and saunters off!

Tamaki, Shiina, Ayame and Minaha stay over at Shiina’s house to work on their new entry for the Summer Comiket, “Stardust Intenzione.” In the middle of the night, the doorbell sounds. Shiina opens the door to find Tamaki’s classmate, Natsu Iino. And Natsu has come to get her younger sister...?

It's summer, but the SNS Club is hard at work on their new game. At last, it's the day of the Summer Comiket, and the girls head for the hall to sell their new work, "Stardust Intenzione"!