I Didn't Mean to Fall in Love -double‪-‬

Charismatic college student Rou never expected his one-night stand with thirty-year-old Yoshino to amount to more than a casual fling. But more surprises are in store for this unlikely couple! Rou has just joined the workforce and is looking forward to a happy future together. But things get off to a rocky start--Rou butts heads with Niko, a colleague at his new company, and the two lovers find they have less time to spend together now that they're both working. When Yoshino begins to suspect that there's more going on between Rou and Niko than Rou is letting on, his insecurity and anxiety threaten to tear their relationship apart!