I Kept Pressing the 100-Million-Year Button and Came Out on Top, Vol. 4 (light novel)

After managing to rescue Lia from the Black Organization, Allen is selectedto
represent Thousand Blade Academy in the Royal Sword Festival. As our herouses his
newfound power to score victory after victory against competitorsfrom rival schools,
however, a sinister conspiracy begins to unfold.Meanwhile, Allen and his friends finally
get a moment to catch their breathwhen their school’s cultural festival comes
around...only for hislongtime rival Dodriel and a powerful new foe to launch a surprise
attack onthe event!