(NewsNation) — The household of Hannah Kobayashi, the Maui pistillate who went disconnected the grid aft missing a connecting flight astatine LAX and has since been spotted crossing into Mexico connected foot, is skeptical of the police’s authoritative story.

"I said this from time one, I consciousness similar she is successful danger. I consciousness similar this is wholly retired of quality for her. I've known her my full life," sister Sydni Kobayashi said Tuesday.

Loved ones flew to California to signifier a hunt enactment pursuing concerning texts and past vigor soundlessness from Kobayashi. During the search, Hannah’s father, Ryan Kobayashi, was recovered dormant successful a parking batch adjacent LAX connected Nov. 24.

"If she had seen what happened with my begetter and his passing, she would person decidedly reached retired by now," Sydni Kobayashi said. "There's nary mode that she wouldn't person reached out, knowing the idiosyncratic that she is."

Hannah Kobayashi's sister: Mexico travel 'bizarre'

Authorities updated the nationalist Monday evening with the latest details connected Kobayashi’s disappearance.

Hannah Kobayashi was seen connected information footage crossing the U.S. borderline connected ft into Mexico, alone, with luggage and seemingly unharmed, according to the Los Angeles Police Department.

The lawsuit is present classified arsenic a voluntary missing idiosyncratic case.

Sara Azari, a ineligible expert for NewsNation who has been retained to correspond the Kobayashi family, tells “Banfield” that the case's caller designation "doesn't marque it immoderate lesser of a disappearance and a missing idiosyncratic case" to the family.

Sydni Kobayashi told NewsNation she recovered her sister's crossing into Mexico "bizarre" due to the fact that it was her archetypal travel to Los Angeles, and "she's ne'er mentioned going to Mexico," adding: "It conscionable doesn't marque consciousness to me."

"It feels similar idiosyncratic other is progressive oregon controlling her oregon doing something," Sydni said.

Kobayashi's household person unresolved questions

Notably, Azari pointed retired that Hannah Kobayashi had planned and flown connected this travel with an ex-boyfriend.

"Did anybody speech to formation attendants to spot if determination was immoderate enactment connected this formation betwixt her and the ex-boyfriend? I mean, we're just, there's a batch of questions and there's nary answers," Azari said.

Sydni added that the handling of her "baby sister's" lawsuit has acrophobic the family, arsenic they were kept successful the acheronian astir her question to Mexico until the Monday quality conference.

"Had we person known that she had crossed the borderline connected the 12th, that would person fixed america truthful overmuch much of a antithetic absorption of wherever to look and what to do, arsenic acold arsenic this is concerned," Sydni Kobayashi said.

She besides added that LAPD hasn't shared that footage of the passageway to Mexico with the family, truthful they can't adjacent corroborate whether it is their missing loved one.

Sister's connection to Hannah Kobayashi

"I conscionable I privation her to cognize that that she is loved and she is supported successful each way, signifier oregon form. And nary substance what she's going done close now, she needs to cognize that she has a spot to travel location to.

"And I can't accent it enough, similar she is specified airy successful our lives, and she's conscionable specified an astonishing and beauteous woman, and she's like, she's my babe girl, you know, she's my babe sister.

"And you know, I just, I truly anticipation that if she does spot this, conscionable fto america know. Give america a connection oregon thing to fto america cognize that you are harmless and that you are OK, due to the fact that you person truthful galore radical down you.

"You person truthful galore radical who emotion and attraction for you that conscionable privation to cognize that you're genuinely OK, adjacent if you're not. Just something, immoderate benignant of similar message, phone, call, something."

Kobayashi household lawyer: Don't perceive to others

Azari besides added that it's important to enactment that Hannah Kobayashi's household consists of Sydni Kobayashi, "her parent and her uncle and that side," not aunt Larie Pidgeon, who has spoken to NewsNation mutliple times astir the case.

"I volition bash immoderate I tin to support our household astatine this constituent and bash immoderate I tin to inactive find my sister," Sydni Kobayashi said. "And I nary longer privation to person immoderate transportation with the disorder that I consciousness similar she's caused since this lawsuit started with my sister."

NewsNation's Liz Jassin and The Associated Press contributed to this report.