1-4, 6.5: uke with smell fetish hated delivery man for his bad cologne smell. but when he smelled him without any cologne, he immediately fell for his smell. uke doesn't stick to a partner for long and is not serious about having relationships and love, until seme's honest and kind personality made him fell for him.
5-6: uke with foreigner love, bumped into a foreigner looking handsome guy. seme likes to tease him for seeing his cute reactions. seme is mix blood and likes uke after the first time they met. uke didn't believe seme liked him after seme's confession.
Koisuru Futari no Taion