Light was a genuis student who had become jaded with humanity. When he found the Death Note, which would allow him the ability to kill whomever's name was written in it, he set about slaughtering all the criminals he could find, earning the moniker Kira (the Japanese pronunciation of Killer). Light's genius is rivalled only by his ego, frequently proclaiming his status as God of Humanity.
Due to his good looks and effortless charisma, Light can charm any girl he wants. Here are just some of his most note-worthy girlfriends
Misa AmaneWhen Kira killed the man who murdered her parents, Misa developed a fanatical obsession with him. After finding out that Kira was Light, her obsession turned to infatuation. Since Misa had a Death Note of her own, as well as the added ability to see the names of people she hadn't been introduced to, Light allowed her to be his grilfriend.
Its pretty clear Light doesn't have any real feelings for Misa. When she tried surprising Light with some skimpy lingerie, he didn't even look at her. Light just keeps Misa around because she's easy to control and has an added power. After Light is killed, Misa sinks into a depression and eventually kills herself.
Kiyomi TakadaKiyomi was dating Light during his first year of university, around the same time he met Misa. Kiyomi would become an anchorwoman in later years, as well as a Kira spokeswoman. When Light arranged a meeting with Kiyomi on the pretense of acquiring information for the police force, he flat-out admitted he was Kira. Kiyomi then inherited some pages of Misa's Death Note to help with Kira's crusade. After getting herself kidnapped, Light murdered her to avoid being traced back to Kira.
In the Death Note movie, Shiori was dating Light before he acquired his Death Note. When Kira became a sensation, Shiori was strongly opposed to the idea of him. Light had faith that if she found out he was Kira, she'd eventually understand. When the police, the FBI and various other detectives began coming after Light at the same time, he plans for Shiori to be murdered before his very eyes, taking the heat off him once and for all.
When questioned about whether or not he felt anything for Shiori, Light's only response was I don't know, although he was fighting back tears at this point, showing that he did love her.