Ouchi e Kaerou

From Intercross:

1-3) Ouchi e Kaerou
The calm composed honor-student, Satomi has always stated his dislikes about Keiko but meeting accidentally at a preschool, Keiko makes an unexpected connection that is found between having to look after her younger brother as Satomi does with his younger sister. This leading to Keiko being able to speak with Satomi normally, to coming to the point of helping Satomi who is poor with housekeeping...?!

4) Ore-Sama Housekeeper
(Also included in the anthology Houkago, Kimi to Koi o Shite.)
Shino Anzu finally has the house to herself, so decided to live up and make a mess in the process. Her moment of bliss was suddenly interrupted when the "ore-sama" housekeeper arrives in her place! Anzu was, however surprised as she saw a different side to him while he became a housekeeper at her place and starts to perhaps fall for him?

5) Digital Honey]
Miru suddenly woke up, not remembering anything. Shocked, her inventor had told her that she is his new android model. Could that be true, or is there more that meets the eye?