Shin ask Heart why she call him big brother or do he have a gift package and about the gifts he got from his pantheon. Heart explains to Shin I was born when your reincarnated unlike other systems that claim to be all knowing and powerful when they bind to your host system sprites like are use born when they host awaken us big brother. Heart also informs that all summons know that he summoned them and about the system. He asked why do I have such strong system. The two goddesses made it as a gift for you being of pure heart and dying to save the twins kids and to strengthen their husband.