"Let's have fun together in the Railway Club!" Tenman Sora has fallen in an unrequited love for the Railway Club's Mahiro-sensei! "No matter how thorny the trains may be, if it's for Sensei, just bring it on..." The pinnacle of heart-throbbing excitement. We sincerely invite you on a tingly girls-exclusive railway journey!

Note: Includes 3 extra chapters.