Mokushiroku no Yonkishi - Vol. 1 Ch. 3 - Father's Whereabouts

[MangaDex]

 

[Didakos]

@Rizaadxn definitely a better translation

 

[NaruseBasket]

THANKSSS

 

[Reaper87]

My guess is that his power is magnified by cheering or belief in Percival

 

[Rizaadxn]

@Didakos agreed.

@Reaper87 possibly, it's definitely some type of strength amplifier since he managed to push the Black Knight away rather easily.