Lovesick Ellie Vol. 6 (Kodansha, 2018)

Distinguished fantasy tweetsmith Eriko ""Ellie"" Ichimura and Year One's resident heartthrob Akira Ohmi spend their first Christmas and hatsumode together, advancing from mutual interest to officially together. Unable to come down from cloud nine, Ellie has her precious phone confiscated by her teacher and ends up in detention with her classmate Kaname-kun. His total lack of situational awareness leads to Ellie hurting herself, but apparently, to Kaname-kun, this is an occasion calling for… friendship? What's going on?! Presenting Volume 6 of a plain pervert's curious romance!