A series of "bishōjo"-centered manga booklets that were released weekly for a short time in Japan.

The manga would come packaged with a limited edition plastic-figure assembly kit, designed by Ohshima Yuki, of the featured character of the week:
Volume 1 - New! - Figure for volume 1 - Mion
Volume 2 - Two! - Figure for volume 2 - Ashita
Volume 3 - Hot! - Figure for volume 3 - Harusame
Volume 4 - Why!? - Figure for volume 4 - Sonome
Volume 5 - Bye! - Figure for volume 5 - Eruron
Bonus volume - eXtra! - Figure for bonus volume - Tetora

There is a conspicuous absence of the brothers (oniichan) of the title, as only the little girls are 'portrayed.

From Infinity Studios:
With the invention of the automatic vacuum robot and the time-set video recording devices, what is the next breakthrough in home appliances? Why that would be cute female mini-robots that kill bugs of course! In Ichigeki Sacchu!! HoiHoi-san, a corporation in this alternate universe has created such a pest control agent and it’s the hottest selling item ever. Journey along with one enthusiast of these robots called HoiHoi-san’s and experience the joys & suffering of being a dutiful owner of these new adorable, bug killing, wallet busting machines.

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