Japanese Maple and Autumn Colors at Koto-In Garden. Koto-in was established in 1601 by Tadaoki Hosokawa, a famous warrior under Toyotomi Hideyoshi. He studied Zen under the Daitoku-ji abbot, Seigan, and was a disciple of tea master, Sen no Rikyu. Koto-in is home to two famous tea houses, Shoko-ken and Horai.