HP: I Planned a Heartbreak at Hogwarts

[Both CP Sirius and Mary Sue OOC, no hidden setting, Peter was put in Slytherin as a backdrop by the author's evil hand, the full text is complete, the heroine is the Eagle Heart of the Lion House] Emma Sigris' plan is clear: 1. Integrate into Gryffindor 2. Make Sirius Black fall in love with her 3. Dump him gracefully Everything was going according to plan—until she found herself looking at him longer and longer, her heart beating louder and louder as she thought of him. When Sirius really showed his unreserved sincerity in front of her, Emma was shocked: This carefully planned heartbreak seemed to be breaking her own heart.