Ayumu Aikawa:
Sera has a good relationship with Ayumu. Sera cares about Ayumu and she likes him secretly. She is the servant from Ayumu and she calls him "piece of shit". In Season 2 Episode 4 Ayumu eats Sera´s cooking and Sera blushing. In Season 2 Episode 8 Sera is in love with Ayumu. She cares a lot of him. She has a love interest with Ayumu. She likes him as master.