Hashiyami hōno Kurayami honō is a crybaby oni with powerful strength and speed, but for yuugi and suika she’s like a spiritual sister to taking care and drink with her sometime Ability : manipulation of the iron and fire Yuugi Hoshiguma Personality Yuugi is a very firm and straightforward oni who loves the freedom of Former Hell. She likes those who are strong and brave, and has no mercy for the weak and cowardly. While she may be intimidating, she can be very friendly and sympathetic towards anyone regardless if they're a human, youkai or a vengeful spirit. Abilities Superhuman Strength Yuugi possesses enormous strength that far exceeds that of any other kind of youkai. She has arguably the greatest super-strength, as even Suika, that was considered the strongest in this sense by the time of Silent Sinner in Blue, admits that Yuugi might be physically stronger than she is. In Symposium of Post-mysticism, it is said that, according to rumors "her superhuman strength is of the level where her footsteps alone are enough to make nearby buildings collapse". She has also shown to be able to easily produce heat by raising her hand, and flatten trees merely by screaming. Wield unexplainable phenomena Anomalies, strength, disorder, and spirits (怪力乱神 kai-ryoku-ran-shin) is a metaphor for unexplainable phenomena that originates from the Analects of Confucius, where one of his disciples said "the Master never talked of anomalies, strength, disorder, or spirits." (子不語怪力亂神 shifugo-kairiki-ranshin) Furthermore, Yuugi's title is "the so-called unexplainable phenomenon". Occupation Yuugi spends her time in Old Hell, fraternizing with the other oni, engaging in frequent drinking contests and generally having a rowdy time. Possessions Yuugi carries a sake dish called the "Hoshiguma Dish". It raises the quality of any sake poured into it. Kasen Ibaraki later uses this to transform some of her own sake for a party at the Hakurei Shrine. The dish itself is considered a masterwork of the oni. Suika Personality Her personality is jolly and quite childish, as you would expect from her appearance. Despite her childlike exterior, however, she possesses great amounts of raw power. She loves drinking and is frequently seen in the fighting games drunk; she claims she's been drinking sake for some hundreds of years now. Suika bears the typical personality traits of most oni, valuing strength and fair play while despising dishonesty and cowardice. However, she is apparently slightly less honest than a typical oni. In addition, she doesn't kidnap humans, which is known to be the "strongest bond of trust" between oni and humans. However, she is nonetheless quite honest. Though she is generally a happy-go-lucky oni, as one of the most powerful youkai in Gensokyo, she can be very observant. In addition, she is seen being very critical of others in Immaterial and Missing Power, such as by calling Alice Margatroid a coward and telling Youmu Konpaku how people make fun of her. Abilities Suika, more than the abnormal strength of an oni, possesses super-strength. Aya Shameimaru, who has probably seen or heard of nearly every youkai by now, once referred to Suika as "simply the most powerful youkai in Gensokyo" Manipulation of density and sparseness A giant Suika about to squash Marisa Kirisame, as illustrated in The Grimoire of Marisa. Suika's ability to manipulate "density" gives her the power to control the density of any given object; to put it simply, assembly and dispersion. As the object's density increases, it heats up, and as it decreases, it turns into a mist. During her spell cards and other attacks, she can also create smaller versions of herself and make herself giant. She can also decrease her own body's density to become a mist, as she did during the events of Immaterial and Missing Power, making it impossible to attack her. By doing this all over Gensokyo, she can effectively keep an eye on everything going on. She can also gather things without shape, like people's souls, which caused the incident in the first place. She has also affected the Moon as reflected in sky (the canopy) to make it explode, then take the falling fragments and turn them into mist as well, but the details as to how are unknown. Youmu Konpaku, after striking her with one of her swords, commented that the sword itself reacted strangely. With this power, she was able to assemble the thoughts of people and youkai, and made the residents of Gensokyo periodically have a party. Possessions Suika has a gourd that she calls the Ibuki Gourd, which has been soaked in the extract of a sake bug, making it capable of turning water into sake. To prevent it from overflowing, the gourd has a stopper on it, and she can't pour out more than the gourd will hold at one time. Closing the gourd will make it refill right away. This is because it takes the evaporated contents of the countless ordinary gourds and turns them into alcohol inside the gourd. 

Kuriyama are into the youkai mountain before it was into Gensokyo