|Volume||Light Novel Volume 11|
Valentine is chapter 126 of the Boku wa Tomodachi ga Sukunai light novel series. It is chapter five of volume eleven.
It was the first week of February and the members of the Neighbor's Club (sans Yukimura) are present in their clubroom. With Valentine's Day approaching, Yozora comes up with an activity of making chocolates of their own and then sharing them with friends, dubbed "Tomo Choco". Days later, the club undertakes their Valentine's Day-inspired activity at the Hasegawa Residence's kitchen. As their cooking goes on without incident, Hayato visits and greets the club, wondering about Yukimura's absence and his son's high school life whilst being surrounded by girls of 'high-level'.
On Valentine's Day, the Neighbor's Club share amongst themselves the result of their activity and Kodaka receives Sengoku-themed chocolate from Yukimura. In his inner-monologue, Kodaka remarks that Valentine's Day ended without a hitch although, on the other hand, it proved to have ended in the worst way possible from a RomCom's (romantic comedy) perspective.