I barely remember it so forgive me if the description is vague.

It was the typical cliched (shounen?) manga. Highschool/middle school boy is living a fairly normal life when this girl shows up (short-ish hair and I think she wears her bangs on the top of her head?) and basically decides to make him her husband or something along those lines. I think she was a ninja or that she at least had some sort of weird skill. Another, similar girl shows up later and they fight over him while he just gets annoyed with them both.
I remember the one scene where girl #2 was trying to sneak up on him while he's sleeping and he starts saying things completely out of character like that he likes her, etc, and he pushes her down on the bed. Awkward misunderstanding scene follows and girl runs off. You find out girl #1 had taped herself saying words she wanted the boy to say to her and put headphones over his ears while he was sleeping so they would imprint on his subconscious.
Later a guy named Tora (I think?) shows up (big, muscle-y looking guy that wouldn't look out of place in Street Fighter), challenges our MC to a soccer match of all things. Tora loses because the MC puts water bottles around his goal and apparently "tigers are afraid of water"...so the Tora guy won't go near the goal.

Anyway...basically, weird, crappy stuff. I dropped it because I didn't like it but looking back on it, I didn't give it much of a chance so... If anyone's got any idea what the name if it might be, I thank you >.<

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Tesla: If an immortal vampire dies in a virtual world-

Magnus: -does he make a sound?
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Likes: Action, adventure, drama, fantasy, historical, horror, mystery, psychological, sci-fi, seinen, shounen, supernatural, tragedy

...I read too much >.>

judging by the second part of your description, I'd say it's Sumomomo Momomo