Same name different manga?

[GuiltyAsCharged]

I think some one put another manga under the same name as another one i was reading

http://manga.animea.net/rival-ni-ki-wo-tsukero.html

Rival ni Ki wo Tsukero Manga

• Alternative title(s):ライバルに気をつけろ, Beware of the Rival
• Released in:2005
• Author(s):YAMAKAMI Riyu
• Artist(s):YAMAKAMI Riyu
• Type:Manga
• Genre(s): Comedy, Romance, School Life, Yaoi
• Status:Completed

vol 1-4 is the yaoi manga

then Rival ni Ki wo Tsukero 5 Vol. 2 A Pervert's Heart and a Woman's Spirit!?

changes in to a weird boxing manga and not the same art work

I think some one post them in the wrong spot or some thing

I hope this is were I post this