Kashiwazaki Yu has dated Naoki for the past 7 years and they have lived together for the past 5 years. Nowadays, their relationship has very little romance and Naoki seems to have no interest in marriage. On Kashiwazaki Yu’s birthday, Naoki seems to care more about his new game than celebrating her birthday. Kashiwazaki Yu is unable to control her anger anymore and runs out of their house. Perhaps by fate, she then meets her ex-boyfriend Fukami from her high school days. Kashiwazaki Yu soon finds herself in a love triangle with Naoki and Fukami.

One day Nozomi attends a middle school reunion and is reunited with her first love, Shuichi. Her love is rekindled when she the guy approaches her, but they get caught up in an incident where members of the reunion start dying one after another.

Imai Mio made her debut as a manga artist three years earlier. However, she did not gain much popularity and now works as a manga assistant with no bright future in sight. One day, 14 years after her junior high school graduation, a class reunion is held out of the blue. This is where she meets her first love Amemiya Shoichi again. The cool and handsome Shoichi excelled in his studies and sports and was like a perfect prince to all the female students back then. He is now the CEO of an IT company and still as popular with the ladies. Mio had thought that her feelings for him were one sided but this class reunion results in his active pursuit of her. Then of all things, members among the group of six good friends who attended the event get caught up in incidents and start to die one after another. Each of them are hiding something shockingly dark which triggers endless lies and an unstoppable, tingling love-hat

36-year-old bachelorette Mami achieved success with an essay she wrote 10 years ago. Mami has since lost her way, and hasn't been able to write a hit piece. Meanwhile Yukino, who leads an independent life, Ayaka who is a housewife, and Miho, who makes her livelihood as a "daddy's girl", are each facing various difficulties in their own lives.

Sakamura Mahiro, an employee at the high-class old inn known as 'Kataoka', has an ambition to marry a rich man and live a comfortable life because of her previous relationship. Her goal is to find her 'ideal prince' with money, honesty, and values in a marriage partner that she will not negotiate on. While working at Kataoka, she comes to meet Kouya, Yugo and Keiichi as she searches for her ideal partner...

Hyakkaou Private Academy. An institution for the privileged with a very peculiar curriculum. You see, when you're the sons and daughters of the wealthiest of the wealthy, it's not athletic prowess or book smarts that keep you ahead. It's reading your opponent, the art of the deal. What better way to hone those skills than with a rigorous curriculum of gambling? At Hyakkaou Private Academy, the winners live like kings, and the losers are put through the wringer. But when Yumeko Jabami enrols, she's gonna teach these kids what a high roller really looks like!