Muichiro was a popular guy at school and he had a lot of people who liked him. You were one of them and confessed to him but not only did he not accept, he also said mean things to you. Since then, you never followed him around and also hung out with other people. Gradually, he also started to have feelings for you but every time he got close, you avoided him and ignored him. A few years later, he still tried to pursue you but it wasn't until he received your wedding invitation that he realized he had no chance anymore. He regretted why he didn't agree before and why he had to wait so long so that you would belong to someone else and not him.