Mongji's manga / #hacker(1)

Synopsis: Teru, a poor and kind girl, recently lost her older brother, her only remaining relative. Before he died he gave her a cell phone connecting her to a person he said would support her if ever he were unable to. As time passes she is cheered on by text messages sent from this enigmatic person, known only as DAISY. Then, one day, through an unexpected incident, Teru begins working for the delinquent school janitor, Kurosaki. But this sadistic scoundrel Kurosaki is reall...!? [Thoughts] I've read this before so many years ago an I never decided to finish maybe because it was getting a little heavy for the "me" back then but the me now would take this with a stride, cry and move one but...I don't think the current me can also finish this nostalgic story, it would be too much to take in. So I decided to finish this but I didn't start to the part I left off but to the near end, and I did not understand the whole plot (I thought it was just some high school girl who lost her brother/guardian) but even still, it made me actually cry...