It's "Shijou Saikyou no Deshi Kenichi" or "Sijou saikyou no deshi kenichi" as in
the manga database. The manga is serialized in "Shonen Sunday".
Official site
The usual shonen stuff with martial arts and panty shots with generally decent artwork.
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"If ignorance is bliss, then why aren't more people happy?" -- Misc.
Currently listening: Nadda
Currently reading: Procrastination for the win!
Currently playing: "Quest of D", "Border Break" and "Gundam Senjou no Kizuna".
Waiting for: "Shining Force Cross"!