The problems of childhood promises forgotten.
What They Say:
Raku and Chitoge continue bickering, which does not help the situation, as their relationship status is already under scrutiny by Ruri and Kosaki. But when Chitoge confesses to them that their relationship is actually fake, Kosaki decides that she will let Raku know how she feels about him. Then one day Seishiro, a beautiful girl dressed like a boy, transfers to their school. She is actually a hitman hired by Claude to expose Raku and Chitoge! Although Raku is her enemy, when she comes in contact with Raku’s kind nature, Seishiro is confronted with a new emotion that leaves her totally confused. Meanwhile, Chitoge finds her diary from 10 years ago and remembers the promise she made with a certain boy. As their feelings sway, the group sets out to the open-air school where they can expect unforgettable experiences with the hot springs and even the test of courage!