Yuno Gasai
(我妻 由乃, Gasai Yuno 

 is the deuteragonist of Future Diary (Mirai Nikki) series. She is the Second in the Survival Game and possesses the "Yukiteru Diary".

            Yuno Gasai is a young girl with pink eyes and long pink hair that she wears in pigtails, two hanging as frontal locks featuring a pair of red bows, and the back pigtails are left bare. Her most common attire consists of blue shirt with a ribbon on her chest and blue skirt with high socks.


            Yuno's personality is an ambiguous one, for the most part she is a sweet, feminine and sometimes shy girl when around Yukiteru. This masked her darker side that is of a ruthless, cold and calculating psychopath who has little if any problem in using others for her ends, that is her and Yukiteru's survival. She will resort to cruel and mostly violent methods that most of the time end in bloody deaths, of either the Diary Holder or any follower, effectively making her a Yandere.

            However, she wasn't always insane. Her brutal personality is a result of circumstances surrounding her life, mostly the abuse she endured by her mother and the absence of her father, which finally ended with their deaths two years prior to the Survival Game. This was the beginning of her changes, as she later became quite lonely and sorrowful. So from the point onwards of when Yukiteru told her they would marry when they grew up, it was the pillar of support she needed, and her obsession for Yukiteru grew to escalating proportions. Willing to harm those whom she believes will take Yukiteru away from her, such as friends, etc. This goes to the point that she considered resorting to violence if Yukiteru's mother ever opposed her, which did not happen, and threatened to kill Tsubaki Kasugano, and immediately panicked that Yukiteru's friends Aru AkiseHinata HinoMao Nonosaka and Ouji Kosaka would take Yukiteru away from her, forcing Yukiteru to calm her down and announce their "relationship", much to Yuno's joy and his own despair. In the third world, the third Yuno seemed to be very nice and calm possibly because she has love for her parents and there was no tournament for them and is no longer insane, although, as a side effect of receiving her 1st World self's memories, she still has an obsession with Yuki.


            Her diary is the Yukiteru Diary, which tells her everything about Yukiteru in intervals of ten minutes. While this means that her diary is basically useless by itself, if combined with Yukiteru's Random Diary that predicts Yukiteru's surroundings, it can cover Yuno's weakness and protect Yukiteru, making the two a fearsome duo.

            Even while the diary does not help her much by itself, Yuno can more than enough make for it with her great and cunning intelligence, which has saved both Yukiteru and herself in several times. She makes up most of the plans the duo uses to save themselves from the attacks of the other participants, as well as being able to quickly determine the weaknesses of certain diary users, like Yomotsu Hirasaka's blindness, or discover that Tsubaki Kasugano's followers were pretending to be dead to ambush them. She is also skilled in traps, seen when she booby trapped an abandoned hotel with multiple tools, such as electronic locks, concrete (gas in the anime) and even a sickle from an elevator (also in the anime). Her intelligence being her greatest asset. Although she possesses no real powers, Yuno has an uncanny sense of aim, and can use any small object as a deadly projectile. She has killed people with toothpicks, pencils, cards, and other ordinary objects, hurling them with fatal accuracy.

            Yuno is shown to be quite resourceful, using a shard of glass as a mirror to check the position of Minene Uryu during her bombing attack, as well as a pair of stones against Yomotsu to discover him amongst his copycats.

            Her perhaps most fearsome ability along with her great intelligence is her mastery skill in basically all types of weaponry, mostly blades, such as knives and axes, and during the attacks against Kamado Ueshita and John Bacchus, to be a skilled swordswoman, and using firearms such as a pistol and a machinegun with lethal proficency. She also is fairly acknowledgable of poison and drugs although she uses them in few times. She has also demonstrated to be quite skilled in infiltration, as she has in more than one occassion entered a building unnoticed even while it was protected by the police.

            Also despite her feminine appearance, Yuno has demonstrated impressive feats of physical strength mostly when angered, seen when she could free herself from two boys her age holding her in both arms, as well as free herself from two Omekata Cult members even when Tsubaki kissed Yukiteru and killed them too, even though she was severely weakened by the excessive amount of physical activity performed at that time. Also during the second attack against The Eleventh she was capable of slicing up a person in half with a katana.

            On top of all that, Yuno possesses godly powers from winning the first Diary Game. An example of such power is moving enormous structures through her will alone, such as when she tried to crush Yukiteru.

            All in all, those who have ever faced and lived to tell the tale, have acknowledged her as a fearsome opponent and can be considered one of the most powerful participants.


  • The characters of her last name mean "I" (我) and "wife" (妻), respectively.
  • Yuno's birthday is November 16th.
  • Her first name is based on Juno , the Roman goddess who was wife to Jupiter. Like her namesake, Yuno is extremely jealous of any woman who goes near Yukiteru.
  • Yuno's "Yandere trance" at the end of Sign Up has become an internet meme, with internet users editing Yuno's face to look like other characters from numerous series.
  • Yuno has three character theme song: The first is "RED Love " performed by Faylan; the second is "Happy Fate " by Matsui Yousei and sung by Choucho; and third, shared with Yukiteru, is "My Wish Lives in the Future ", sung by Yuno's voice actress Murata Tomosa.
  • It is slightly foreshadowed in both openings that Yuno had killed herself.
  • Yuno's shares many characteristics with Bullseye from Daredevil, as both have abusive parents, attempted to kill their parents, are proficient in firearms and marksmanship, and are homicidally violent.
  • Yuno was a contestant of the International Saimoe League's 2012 season.


Leave a Reply.