"Skip Beat! Vol. 24" by Yoshiki Nakamura (Preowned Paperback)

When Kyoko's heart is broken, she decides that revenge is a dish best served in the spotlight 

Kyoko Mogami followed her true love Sho to Tokyo to support him while he made it big as an idol. But he's casting her out now that he's famous Kyoko won't suffer in silence--she's going to get her sweet revenge by beating Sho in show biz

Valentine's Day is on its way, but Kyoko won't be able to celebrate love and friendship the normal way. She's getting blackmailed into giving chocolate to guys she hates, she has her ongoing revenge to oblige, and to top it all off, it's Ren's birthday How can Kyoko give him a meaningful present when she's slinging meaningless chocolate left and right?