The Most Favorable!

Sai Psi Sai Kouchou, sang by Dempagumi.inc is the second opening song of Saiki Kusuo no Ψ Nan which is only played during Sunday in the compiled version of the episode.

Rōmaji
TV version=TBA
 * -|Full version=TBA

Kanji
TV version=TBA
 * -|Full version=TBA

English
TV version=TBA
 * -|Full version=TBA