Gods' Games We Play, Vol. 3 (light novel) — Kei Sazane

Dare to play mind games with a god?Two fierce battles in the Sacred Spring City of Mal-ra didn't slow down Fay and his teammates! They return to Ruin to face off against a god known as the Bookmaker and win the reinstatement of their new comrade, Nel -- a retired apostle. Challenging this god requires a tempting wager, so they'll bet with Fay's precious victory count in a poker game. However, Nel's honorable nature isn't cut out for strategic manipulation. Things start to look bad for her, but Fay doesn't seem too worried. He has a plan, of course, but will it be enough to outdo a god?