Seed Sr. likes gardening and can often be seen tending to flowers in his spare time. Despite being an intelligent construct, Seed Sr. always wished to prove he has a heart. One day after he was dispatched to investigate Hollow Zero for a mission, he would find an orphaned girl with barely any signs of corruption. Taking her in and naming her "Flora", Seed Sr. raised her to prove they both have a heart.
Seed Sr. is currently "asleep". Him tampering with his logic core, such as when he fought back against his own self-defense system to avoid harming Seed, slowly caused him to pass away.
Voiced by Genda Tesshou in Japanese and Zhao Zihan in Chinese.
