If you dont know what a waifu is:
"A term coined by Otaku and Weeaboo alike for their 2D significant others; predominantly anime and video game characters. A Waifu, in contrast to a harem, is the love between one man and his one and only Waifu. You treat your Waifu with the utmost respect and courtesy and most refuse to even to their beloved, seeing the act as an insult to the non-existent woman they have committed themselves to." Urban Dictionary
Mine is Zero Two
"A term coined by Otaku and Weeaboo alike for their 2D significant others; predominantly anime and video game characters. A Waifu, in contrast to a harem, is the love between one man and his one and only Waifu. You treat your Waifu with the utmost respect and courtesy and most refuse to even to their beloved, seeing the act as an insult to the non-existent woman they have committed themselves to." Urban Dictionary
Mine is Zero Two