第 5 集: 花火大會中，一花向風太揭露她秘密兼職的真相
In the alley, Ichika explains to Futaro that she got a call from work and will not be able to watch the fireworks with her sisters this year. She sees the moustached man from earlier and embraces Futaro so as to hide behind him. Futaro again dismisses the notion that he is friends with the quintuplets, which Ichika tells him is hurtful; Futaro feels guilty about Miku's earlier reaction, realising that he hurt her feelings. Meanwhile, the man searching for Ichika accosts Miku, mistaking her for her sister; Futaro stops him and declares defensively that he is the quintuplets' "partner", stunning both Ichika and Miku. The man turns out to be Ichika's agent, calling her a "talented young actress", revealing her secret job. Futaro tries to persuade Ichika to stay, but she has an important audition and insists on going. Instead, he helps her run lines, ironically reading the part of a professor to her thankful student. Ichika arrives late to her audition but wows the casting panel. When she returns, the festival is over, but Futaro brings her to the park, where her sisters are waiting for her with a mini-fireworks set. They forgive her for skipping out on their tradition. Ichika and Miku reach for the same sparkler (an implied metaphor for Futaro) but Ichika lets go, saying "seems like you're pretty attached", and tells Futaro she will co-operate more in study sessions. (Source: Wikipedia)