Tokimeki Memorial (Japanese: ときめきメモリアル, Hepburn: Tokimeki Memoriaru; lit. "Heartbeat Memorial") is a dating simulation series by Konami. It consists of eight main games in addition to many spin-offs. The games are notable in the dating sim genre for being highly nonlinear. Their nickname amongst their fans is the contraction TokiMemo. The gameplay in Tokimeki Memorial focuses on scheduling, dating, and stat-building. The player has limited time to allocate between asking out members of the opposite and developing the playable character's abilities at school and sport (with the long-term goal of becoming more seductive, not out of any intrinsic value). Dates are frequent but very brief, with usually only one multiple-choice question to determine whether the partner's love meter will increase or decrease. One playthrough lasts for a fixed period of three years of high school (on the order of 5–10 hours of play), at the end of which the character with the highest love meter confesses their love.