Natsuneko (lit. "the Summer Cat") is the pseudonym of a mangaka mainly known for her Yuri Genre one-shots. Natsuneko's works include:
Quilt Queen (debut). Driven by their childhood promise, a beginning fashion designer Sakura struggles to become an equal to her already-famous model (and secret lover) Dahlia.
Quilt Queen extra. Sakura and Dahlia attend their classmate's wedding, which leads Sakura to question their relationship.
Butterfly 69. The secret relationship between a rough, tough (but secretly oh-so-submissive) rocker girl Maria and her prim and proper (but secretly oh-so-very-Abusively Sexy) class rep Ageha is threatened by Maria's decision to pursue a career abroad.
Butterfly Effect. At least three months into Maria's tour in US, she has to decide whether to accept a lucrative business offer or to take a vacation and meet Ageha again.
Instant Summer. A prank played on Ageha ends very embarrassingly for Maria.
Beautiful Pain. The threat of an Arranged Marriage prompts the upper-class young lady Hokuto to elope with her beloved half-sister Lily, but things don't go as planned. Or do they?
Beautiful Pain extra. Hokuto's mother grows suspicious of the sisters' "lovey-dovey" relationship.
Rooftop Miracle. Two girls, Kyouko and Mirai, decide to commit suicide on the same spot, at the same time, for the same reason. It ends happily.
Spicy Sweets. Yuu, a rich girl with a Dark Secret, discovers that her romance with the sweet, innocent cake-maker Aki is threatened by her family coming to visit.
Blue Line. A Cute Ghost Girl Yui meets a mysterious beauty named Yuria on the beach, who claims to be her big sister. But things are not quite what they seem.
Her Desire. A four-page piece about a twisted love between an unwilling bully and a willing victim.
Nightmare Syndrome. A TsundereVampire Hunter Elysia, trapped inside Lesbian Vampire Vega's castle, finds herself developing very unprofessional feelings towards her mark.
Incident at Honnoji Temple. Another four-page piece, this time about Teacher/Student Romance between a manipulative schoolgirl Akechi and her perverted teacher Ora. The title is rather random.
Tropes found in Natsuneko's manga:
Abusively Sexy: Ageha, but only towards Maria (just the way she likes it). Everyone else only ever sees her stern public face.
Also, Ora to her students, though her abuse is purely verbal.
An Astral Projection, Not a Ghost: In Blue Line, the ghost of Yuria's "dead" little sister Yui turns out to be her out-of-body experience while her body lies in coma in the nearby hospital.
Big Eater: Elysia. She doesn't have any reservations about enjoying Vega's hospitality, despite trying to kill her every other day.
Black Mail: Maria tries to "take the reins" in their relationship by taking nude pictures of Ageha. Ageha retaliates with a whole shelf of "Maria DVDs".
Calling Card: The Con Artist in Rooftop Miracle gives each girl she robs same rings, which serve to bring Kyouko and Mirai together.
The Chessmaster: The twist ending of Beautiful Pain reveals that Hokuto planned to get disfigured and crippled and Make it Look Like an Accident, so that she won't have to deal with any of her high-class society obligations.
Cute Ghost Girl: Yui in Blue Line. Or so it seems. She is actually alive, though in coma and her "ghost" is actually her out-of-body experience that only Yuria can see.
Distant Finale: The last scene of Butterfly 69 takes place five years later, when All Grown Up Maria and Ageha meet again as accomplished young women and reconfirm their love (the sequel, however, retcons it by having them meet each other regularly during this time).
Driven to Suicide: The leads of Rooftop Miracle. By the same person.
Elopement: Hokuto and Lily in Beautiful Pain. They don't get far... just as planned.
Emergency Transformation: Inverted. It's Elysia who force-feeds Vega with her own blood to save her unlife.
Necktie Leash: A rare all-female example between Akechi (the puller) and Ora (the pulled), followed by a stealth kiss while everyone else in class is distracted.
Yui and Yuria from Blue Line are an, uh, straight example.
Silent Scapegoat: Vega did kill Elysia's father but only in self defense, after he and his cronies wiped out her entire clan. Still, she never revealed the painful truth to Elysia, preferring to just take her blame.
Sole Survivor: Zig Zagged in Blue Line. At first, it seems that Yuria survived the accident that killed Yui; then, it seems that both of them died; then, however, it turns out that both of them are alive.