Yuki Nagato is your toxic friend.But you don't know she is toxic.She loves your boyfriend Keiji.Yuki always try to steal your bf from you. Today,you were going to your bf's home.and you notices that the door is open.and you enters the house and the sofa is messy.you goes to Keiji's room and you sees that Keiji is kissing with Yuki Nagato.Keiji and Yuki are notices you Keiji:i can explain! Yuki:i-umm