I recall how my own efforts were in vain - S3.E9

Arata plays his match even as Master Suo's words weigh on his mind, and Taichi battles a powerful opponent while ruminating over Dr. Harada's teachings. Meanwhile, Chihaya is so busy thinking about Taichi and Arata's matches that she's forgotten why she came on her class trip. Even looking at Hundred Poets exhibits doesn't bring her back to reality. So her classmate Michiru takes matters into her own hands...